Thank you for emailing us. We have been using chargify for a couple months now and we now have about 700 paying customers. Under the new scheme, it looks like we will need to pay $350 for those 700 accounts. Is my understanding correct? If so, this price change is going to put a very heavy burden on us as it will take us some time to get to 2000 accounts so that the average cost is lowered.
Would you considered a more closely geared pricing model that does not penalize us every-time we successfully grow pass one of the pricing thresholds? For example, please check out Sendgrid's pricing structure, which scales very intuitively. They provide a different type of service and so the exact numbers are not relevant. However, their structure could be a good reference for Chargify.